/**
 * fullPage 2.4.6
 * https://github.com/alvarotrigo/fullPage.js
 * MIT licensed
 *
 * Copyright (C) 2013 alvarotrigo.com - A project by Alvaro Trigo
 */

 @font-face {
    font-family: 'DINFont';   /*字体名称*/
    src: url('../font/DIN-LI.OTF');       /*字体源文件*/
  }

  /* 加粗字体 */
  @font-face {
    font-family: 'DINFont_BO';   /*字体名称*/
    src: url('../font/DIN-BO.OTF');       /*字体源文件*/
  }

 *{
    font-family: DINFont;
 }
 
html,
body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #000;
   
    /*Avoid flicker on slides transitions for mobile phones #336 */
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

p{
    line-height: 40px;
}
ul,li{
    margin: 0;
    padding: 0;
}

audio{
    display: none;
}



#particles-js {
    width: 100%;
    height: 100%;
    background-color: #050505;
    background-image: url("");
    background-size: cover;
    background-position: 50% 50%;
    background-repeat: no-repeat;
}

#superContainer {
    height: 100%;
    position: relative;

    /* Touch detection for Windows 8 */
    -ms-touch-action: none;

    /* IE 11 on Windows Phone 8.1*/
    touch-action: none;
}

.fp-section {
    position: relative;
    -webkit-box-sizing: border-box;
    /* Safari<=5 Android<=3 */
    -moz-box-sizing: border-box;
    /* <=28 */
    box-sizing: border-box;
}

.fp-slide {
    float: left;
}

.fp-slide,
.fp-slidesContainer {
    height: 100%;
    display: block;
}

.fp-slides {
    z-index: 1;
    height: 100%;
    overflow: hidden;
    position: relative;
    -webkit-transition: all 0.3s ease-out;
    /* Safari<=6 Android<=4.3 */
    transition: all 0.3s ease-out;
}

.fp-section.fp-table,
.fp-slide.fp-table {
    display: table;
    table-layout: fixed;
    width: 100%;
}

.fp-tableCell {
    display: table-cell;
    vertical-align: middle;
    width: 100%;
    height: 100%;
}

.fp-slidesContainer {
    float: left;
    position: relative;
}

.fp-controlArrow {
    position: absolute;
    z-index: 4;
    top: 50%;
    cursor: pointer;
    width: 0;
    height: 0;
    border-style: solid;
    margin-top: -38px;
}

.fp-controlArrow.fp-prev {
    left: 15px;
    width: 0;
    border-width: 38.5px 34px 38.5px 0;
    border-color: transparent #fff transparent transparent;
}

.fp-controlArrow.fp-next {
    right: 15px;
    border-width: 38.5px 0 38.5px 34px;
    border-color: transparent transparent transparent #fff;
}

.fp-scrollable {
    overflow: scroll;
}

.fp-notransition {
    -webkit-transition: none !important;
    transition: none !important;
}

#fp-nav {
    position: fixed;
    z-index: 999999;
    margin-top: -32px;
    top: 50%;
    opacity: 1;
}

#fp-nav.right {
    right: 37px;
}

#fp-nav.left {
    left: 37px;
}

.fp-slidesNav {
    position: absolute;
    z-index: 4;
    left: 50%;
    opacity: 1;
}

.fp-slidesNav.bottom {
    bottom: 17px;
}

.fp-slidesNav.top {
    top: 17px;
}

#fp-nav ul,
.fp-slidesNav ul {
    margin: 0;
    padding: 0;
}

#fp-nav ul li,
.fp-slidesNav ul li {
    display: block;
    width: 14px;
    height: 23px;
    margin: 7px;
    position: relative;
}

.fp-slidesNav ul li {
    display: inline-block;
    cursor: pointer;
}

#fp-nav ul li a,
.fp-slidesNav ul li a {
    display: block;
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    cursor: pointer;
    text-decoration: none;
}

#fp-nav ul li a.active span,
fp-slidesNav ul li a.active span {
    background-color: #fff;
    height: 12px;
    width: 12px;
    margin: -6px 0 0 -6px;
    border-radius: 100%;
}

#fp-nav ul li a:hover span,
.fp-slidesNav ul li a :hover span {
    height: 10px;
    width: 10px;
    margin: -5px 0 0 -5px;
    border-radius: 100%;
}

#fp-nav ul li a span,
.fp-slidesNav ul li a span {
    cursor: pointer;
    border-radius: 50%;
    position: absolute;
    z-index: 1;
    height: 6px;
    width: 6px;
    border: 0;
    background-color: #fff;
    left: 50%;
    top: 50%;
    margin: -3px 0 0 -3px;
    -webkit-transition: all 0.1s ease-in-out;
    -moz-transition: all 0.1s ease-in-out;
    -o-transition: all 0.1s ease-in-out;
    transition: all 0.1s ease-in-out;

    /* top: 2px;
    left: 2px;
    width: 8px;
    height: 8px;
    border: 1px solid #fff;
    background: rgba(255, 255, 255, 0);
    border-radius: 50%;
    position: absolute;
    z-index: 1; */
}

#fp-nav ul li .fp-tooltip {
    position: absolute;
    top: -2px;
    color: #fff;
    font-size: 14px;
    font-family: arial, helvetica, sans-serif;
    white-space: nowrap;
    max-width: 220px;
    overflow: hidden;
    display: block;
    opacity: 0;
    width: 0;
}

#fp-nav ul li:hover .fp-tooltip {
    -webkit-transition: opacity 0.2s ease-in;
    transition: opacity 0.2s ease-in;
    width: auto;
    opacity: 1;
}

#fp-nav ul li .fp-tooltip.right {
    right: 20px;
}

#fp-nav ul li .fp-tooltip.left {
    left: 20px;
}

/*导航*/
#header {
    top: 0;
    position: fixed;
    width: 100%;
    height: 60px;
    z-index: 1000000;
    font-family: "Microsoft Yahei";
    background: transparent;
}

.nav {
    /* width: 1920px; */
    margin: 0 auto;
    height: 60px;
    padding-left: 10%;
    padding-right: 10%;
    margin-top: 20px;
}

#lizhi {
    position: relative;
    /* z-index: 9999999; */
}

.lizhi_center {
    /* opacity: 1; */
    position: relative;
    /* margin-left: 56px; */
}

.lizhi_center_show {
    animation: move_li 0.1s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.lizhi_center_hide {
    animation: move_lino 0.1s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes move_1 {
    0% {
        opacity: 0;
        /* display: none; */
    }

    100% {
        opacity: 1;
        /* display: block; */
        /* display: none; */
    }
}

@keyframes move_lino {
    0% {
        opacity: 1;
        /* display: block; */
        /* display: none; */
    }

    100% {
        opacity: 0;
        /* display: none; */
    }
}
/* 处理调试 */
.lil-gui.autoPlace{
    display: none;
}
.home_cent{
    position: absolute;
    left:50%;
    top: 20px;
    margin: 90px auto;
    font-family:DINFont;
    color: #fff;
    z-index: 99;
    margin-left: -460px;
    /* padding-top: 14%; */
    /* max-width: 700px; */
    line-height: 40px;
    opacity: 0;
    z-index: 9999;
    transition: all 3s ease-in-out 0.4s;

    /* 左到右可以， */
}
 
.home_cent_show{
    opacity: 1;
}
.home_cent h4 {
    color: #ffffff;
    font-family:DINFont_BO;
    font-weight: bold;
    font-size: 60px;
    line-height: 34px;
    letter-spacing: 0px;
    text-align: left;
    display: block;
    margin: 0;
    margin-top: 70px;
}

.lizhi_center .title_lizi {
    position: absolute;
    left: 130px;
    top: 220px;
    font-family:DINFont;
    color: #fff;
    z-index: 99;
    /* margin-left: 56px; */
    margin-top: 8px;
    max-width: 500px;
}

.lizhi_center .title_lizi .text_lizi {
    /* margin-left: 86px; */
    margin-top: 8px;
    display: block;
}

.lizhi_center .title_lizi .text_lizi h4 {
    color: #ffffff;
    font-family: DINFont_BO;
    font-weight: bold;
    font-size: 36px;
    line-height: normal;
    letter-spacing: 0px;
    text-align: left;
    display: block;
}
.lizhi_center h4 {
    color: #ffffff;
    font-family: DINFont_BO;
    font-weight: bold;
    font-size: 36px;
    line-height: normal;
    letter-spacing: 0px;
    text-align: left;
    display: block;
    max-width: 62%;
    line-height: 42px;
}

.nav-app i,
.app-dialog .sec .android,
.app-dialog .sec .ios {
    background-image: url(../images/1.png);
}

.mala-logo {
    background-image: url(../images/LOGO.png);
    display: block;
    width: 192px;
    height: 47px;
    margin-top: 8px;
}

.mala-fl {
    float: left;
    text-align: center;
}

.mala-fl a:hover {
    border-bottom: 2px solid #fff;
}

.mala-nav-list {
    margin-left: 30px;
}

.mala-nav-item {
    position: relative;
    list-style-type: none;
    display: list-item;
    margin-right: 59px;
    margin-top: 12px;
}

.mala-nav-link-lang {
    background-image: url(../images/language.png);
    background-repeat: no-repeat;
    display: block;
    width: 28px;
    height: 28px;
    margin-top: 2px;
}

.mala-nav-link {
    font-family: DINFont;
    text-decoration: none;
    display: inline-block;
    color: #fff;
    cursor: pointer;
    font-weight: regular;
    font-size: 22px;
    padding-bottom: 4px;
    line-height: normal;
}

.nav-help {
    float: right;
    /* margin-top: 25px; */
}

.nav-help .mala-nav-link {
    color: #ffffff;
    font-family: Roboto Serif;
    font-weight: regular;
    font-size: 20px;
    line-height: normal;
    letter-spacing: 0px;
    text-align: center;
    font-family: DINFont;
    
    /* text-decoration: none;
    display: inline-block;
    width: 100px;
    font-size: 15px;
    height: 28px;
    padding-top: 15px;
    color: #fff;
    cursor: pointer; */
}

.nav-help .yellow,
.nav-help .yellow:hover {
    color: #ffda28;
}

.clear {
    clear: both;
    height: 0;
}

.nav-app i {
    background-position: -88px -154px;
}

.nav-app i {
    background-image: url(../images/1.png);
}

.nav-app i {
    display: inline-block;
    width: 32px;
    height: 25px;
    background-repeat: no-repeat;
}

.erweima {
    width: 326px;
    height: 256px;
    position: absolute;
    left: -125px;
    border-radius: 8px;
    display: none;
}

.nav-app {
    position: relative;
}

.jiao {
    width: 16px;
    height: 8px;
    margin: 0 auto;
    background: url(../images/21.png);
}

.xiazai {
    width: 326px;
    height: 44px;
    background: #eee;
    border-radius: 8px 8px 0 0;
    text-align: center;
    line-height: 44px;
    font-size: 20px;
    color: #000;
}

.leftma {
    width: 163px;
    height: 204px;
    border-radius: 0 0 0 8px;
    background: #fff;
    float: left;
}

.rightma {
    width: 163px;
    height: 204px;
    border-radius: 0 0 8px 0;
    background: #fff;
    float: left;
}

.leftma div {
    width: 120px;
    height: 120px;
    background: url(../images/1.png) bottom;
    margin: 22px 21px;
}

.rightma div {
    width: 120px;
    height: 120px;
    background: url(../images/1.png) no-repeat 0 -180px;
    margin: 22px 21px;
}

.leftma span {
    color: #000;
    font-size: 14px;
    margin: 0 67px;
}

.rightma span {
    color: #000;
    font-size: 14px;
    margin: 0 67px;
}

/*导航结束*/
/*内容开始*/
.denglu-box {
    width: 340px;
    height: 300px;
    border-radius: 8px;
    background: #4ebffc;
    position: absolute;
    right: 182px;
    top: 110px;
}

.yonghumin {
    width: 300px;
    height: 40px;
    background: #fff;
    margin: 20px auto;
}

.xiaoren {
    background: url("../images/icons.png") no-repeat;
    width: 14px;
    background-position: -124px -12px;
    height: 14px;
    margin: 12px 3px 0 10px;
    line-height: 40px;
    float: left;
}

.yhm {
    box-shadow: none;
    border: 0;
    outline: none;
    padding: 9px;
    height: 20px;
    float: left;
}

.mima {
    background: url("../images/icons.png") no-repeat;
    width: 14px;
    background-position: -140px -12px;
    height: 14px;
    margin: 12px 3px 0 10px;
    line-height: 40px;
    float: left;
}

.yanzhengma {
    width: 300px;
    height: 40px;
    margin: 20px auto;
}

.yzm {
    width: 122px;
    height: 20px;
    float: left;
    padding: 9px;
    background: #fff;
    outline: none;
    border: 0;
}

.yzms {
    width: 99px;
    height: 39px;
    margin-left: 10px;
    float: left;
    border: 0;
    opacity: 0.6;
}

.yanzhengma a {
    margin: 10px 0 0 10px;
    font-size: 12px;
    color: #fff;
    float: left;
    text-decoration: none;
}

.yanzhengma a:hover {
    text-decoration: underline;
}

.denglu {
    width: 299px;
    border: 0;
    background: #ffd850;
    color: #5c4c12;
    border-radius: 2px;
    margin-top: 12px;
    display: block;
    padding: 0 10px;
    font-size: 18px;
    line-height: 35px;
    margin: 30px auto 16px auto;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    cursor: pointer;
}

.dlxb {
    width: 300px;
    height: 20px;
    margin: 0 auto;
}

.dlxb-a {
    background: url("../images/icons.png") no-repeat;
    width: 15px;
    background-position: -203px -75px;
    height: 17px;
    margin: 2px 4px 0 0px;
    line-height: 40px;
    float: left;
}

.dlxb a {
    font-size: 12px;
    text-decoration: none;
    color: #fff;
}

.dlxb a:nth-of-type(1) {
    float: left;
}

.dlxb a:nth-of-type(2) {
    float: right;
}

.dlxb a:hover {
    text-decoration: underline;
}

.left-border {
    display: inline-block;
    width: 5px;
    height: 20px;
    background-color: #fff;
    margin-right: 12px;
}

.back1 {
    position: relative;
    /* background: url("../images/backImg.png"); */
    background-size: cover;
    background-repeat: round;
}


.title2 {
    position: absolute;
    left: 130px;
    top: 220px;
    font-family: "Microsoft Yahei";
    color: #fff;
    z-index: 99;
    /* margin-left: 56px; */
    margin-top: 8px;
    opacity: 0;
    width: 800px;
}


.title2 .text {
    /* margin-left: 86px; */
    margin-top: 8px;
    display: block;
    /* min-height: 300px; */
    transition: all 2s ease-in-out .5s;

}


.title2 .text h4 {
    color: #ffffff;
    font-family: DINFont_BO;
    font-weight: bold;
    font-size: 36px;
    letter-spacing: 0px;
    text-align: left;
    display: block;
    max-width: 80%;
    line-height: 34px;
}


.title2 .text p {
    color: #ffffff;
    font-family: DINFont;
    font-weight: normal;
    font-size: 24px;
    line-height: 30px;
    letter-spacing: 0px;
    text-align: left;
    max-width: 70%;
}

.active1 {
    display: block;
    position: absolute;
    bottom: 80px;
    left: 90px;
    animation: move_1 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.active11 {
    animation: move_11 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes move_1 {
    0% {
        left: 30px;
        opacity: 0;
    }

    100% {
        left: 130px;
        opacity: 1;
    }
}

@keyframes move_11 {
    0% {
        left: 30px;
        opacity: 0;
    }

    100% {
        left: 130px;
        opacity: 1;
    }
}


.video_cent{
    position: relative;

}
.video_play{
    position: absolute;
    left: 50%;
    top: 50%;
    margin-left: -60px;
    margin-top: -60px;
    z-index: 999999;
    cursor: pointer;
    transition: all 0.6s ease-in-out 0s;
}
.video_play_img {
   width: 120px;
}


/* back-1 */

.back0{
    padding-left: 8%;
    padding-right: 8%;
    position: relative;

}

.title1 {
    width: 480px;
    height: 400px;
    position: absolute;
    left: 14%;
    top: 30%;
    /* transform: translate(-100%, -50%); */
    color: #fff;
    z-index: 99;
    transition: all 2 ease-in-out 0.3s;

}

 

.title1_tit{
    color: #ffffff;
    font-family: DINFont_BO;
    font-weight: bold;
    font-size: 36px;
    letter-spacing: 0px;
    text-align: left;
    display: block;
    line-height: 44px;
    transition: all 3 ease-in-out 0.3s;
    opacity: 0;
    margin-top: 40px;
    /* position: absolute;
    top: 60px; */
}




.title1_in {
    color: #ffffff;
    font-family: DINFont;
    font-weight: normal;
    font-size: 24px;
    line-height: 30px;
    letter-spacing: 0px;
    text-align: left;
    transition: all 2 ease-in-out 0.3s;
    opacity: 0;
    margin-top: 40px;
    /* position: absolute;
    top: 220px; */

}


.cent1 {
    position: absolute;
    right: 1%;
    top: 11%;
    transition: all 2s ease-in-out .5s;

}
.video_cent {
    position: absolute;
    width: 600px;
    height: 600px;
    right: 1%;
    transition: all 2s ease-in-out .5s;

}

.video_interact {
    position: absolute;
    right: 18%;
    top: 75%;
    color: #fff;
    font-size: 16px;
    z-index: 99999;
    font-weight: 100;
    cursor: pointer;
    padding: 10px 18px;
    border: 1px solid #fff;
    transition: all 0.3s ease-in-out 0s;
    border-radius: 14px;
    opacity: 0;
}
.video_interact:hover {
   border: 1px solid #fff;
   background-color: #fff;
   color: #000;
}


.cent1_ac {
    animation: cent1_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.cent1_ach {
    animation: cent1_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes cent1_ac {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@keyframes cent1_ach {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

.title1_tit_ac {
    animation: title1_tit_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.title1_tit_ach {
    animation: title1_tit_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes title1_tit_ac {
    0% {
        opacity: 0;
        top: 120px;
    }

    100% {
        opacity: 1;
        top: 60px;
    }
}

@keyframes title1_tit_ach {
    0% {
        opacity: 1;
        top: 60px;
    }

    100% {
        opacity: 0;
        top: 120px;
    }
}
.title1_in_ac {
    animation: title1_in 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.title1_in_ach {
    animation: title1_in_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes title1_in {
    0% {
        opacity: 0;
        top: 320px;
    }

    100% {
        opacity: 1;
        top: 180px;
    }
}

@keyframes title1_in_ach {
    0% {
        display: block;
        opacity: 1;
        top: 180px;
    }

    100% {
        display: none;
        opacity: 0;
        top: 320px;
    }
}


/* back-1 */

/* back-2 */

.back1{
    padding-left: 9%;
    padding-right: 9%;
    position: relative;
}

.cent_box2 {
    transition: all 2 ease-in-out 0.3s;
    position: relative;
    display: flex;
    align-items: center;
    /* justify-content: space-evenly; */
    justify-content: space-between;
    flex-direction: row;
    /* width: 1920px; */
    z-index: 9999;
}
.cent_2{
    
    width: 530px;
    height: 295px;
    background: url(../images/card_bc.png);
    background-repeat: no-repeat;
    background-size: auto;
    opacity: 0;
    transition: all 3 ease-in-out 0.3s;
    /* position: absolute; */
}

.cent_2_v_box{
    position:absolute;
    top: 0%;
    left: 50%;
    transform: translate(-50%, 0%);
}

.cent_2_video{
    opacity: 0.5;

}

.video_interact_2{
    position:absolute;
    top:70%;
    left: 50%;
    transform: translate(-50%, 0%);
    color: #fff;
    font-size: 16px;
    z-index: 999999999;
    font-weight: 100;
    cursor: pointer;
    padding: 10px 18px;
    border: 1px solid #fff;
    opacity: 0;
    transition: all 0.3s ease-in-out 0s;
    border-radius: 14px;
}
.video_interact_2:hover {
    border: 1px solid #fff;
    background-color: #fff;
    color: #000;
 }

.cent_2_tit{
    color: #ffffff;
    font-family: DINFont_BO;
    font-weight: bold;
    font-size: 27px;
    text-align: center;
    /* width: 478px; */
    line-height: 30px;
    transition: all 3 ease-in-out 0.3s;
    padding: 60px 22px 20px 12px;  
    margin: 0px;
    /* opacity: 0; */
    /* margin-top: 40px; */
    /* position: absolute; */
    /* top: 40px; */
}
.cent_2_p{
    color: #ffffff;
    font-family: DINFont;
    font-weight: normal;
    font-size: 21px;
    padding: 0px 22px 0 32px;  
    /* width: 480px; */
    margin-top: 0px;
    line-height: 25px;
}

.cent_2_ac {
    animation: cent_2_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.cent_2_ach {
    animation: cent_2_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes cent_2_ac {
    0% {
        opacity: 0;
        top: 220px;
    }

    100% {
        opacity: 1;
        top: 120px;
    }
}

@keyframes cent_2_ach {
    0% {
        opacity: 1;
        top: 120px;
    }

    100% {
        opacity: 0;
        top: 220px;
    }
}
.video_interact_ac {
    animation: video_interact_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.video_interact_ach {
    animation: video_interact_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes video_interact_ac {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@keyframes video_interact_ach {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}
.cent_2_v_ac {
    animation: cent_2_v_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.cent_2_v_ach {
    animation: cent_2_v_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes cent_2_v_ac {
    0% {
        opacity: 0.5;
        transform: scale(1);
        /* top: 220px; */
    }

    100% {
        opacity: 1;
        transform: scale(1.4);
        /* top: 120px; */
    }
}

@keyframes cent_2_v_ach {
    0% {
        opacity:1;
        transform: scale(1.4);
        /* top: 120px; */
    }

    100% {
        opacity: 0.5;
        transform: scale(1);
        /* top: 220px; */
    }
}


/* back-2 */

/* back-3 */

.back2 {
    position: relative;
    padding-left: 8%;
    padding-right: 8%;
   
}


.video_cen3{
    position: absolute;
    left: 9%;
    top: -2%;
    /* border: 1px solid red; */
}

.title3 {
    position: absolute; 
   top: 14%;
   right: 10%;
    color: #fff;
    z-index: 99;
    width: 420px;
    height: 600px;
}


.video_interact_3{
    position: absolute;
    left: 26%;
    bottom: 10%;
    color: #fff;
    font-size: 16px;
    z-index: 99999;
    font-weight: 100;
    cursor: pointer;
    padding: 10px 18px;
    border: 1px solid #fff;
    transition: all 0.3s ease-in-out 0s;
    border-radius: 14px;
    opacity: 0;
}
.video_interact_3:hover {
    border: 1px solid #fff;
    background-color: #fff;
    color: #000;
 }
 

.title3_tit{
    color: #ffffff;
    font-family: DINFont_BO;
    font-weight: bold;
    font-size: 36px;
    max-width: 80%;
    line-height: 34px;
    transition: all 3 ease-in-out 0.3s;
    margin-top: 40px;
    position: absolute;
    opacity: 0;
    top: 180px;
    margin: 0px;
}


.title3_in {
    color: #ffffff;
    font-family: DINFont;
    font-weight: normal;
    font-size: 22px;
    line-height: 30px;
    max-width: 90%;
    transition: all 2 ease-in-out 0.3s;
    opacity: 0;
    /* margin-top: 40px; */
    position: absolute;
    top: 420px;
    margin: 0px;

}


.title3_tit_2{
    font-family: DINFont_BO;
    font-weight: bold;
    font-size: 36px;
    max-width: 90%;
    line-height: 34px;
    transition: all 3 ease-in-out 0.3s;
    opacity: 0;
    margin-top: 40px;
    position: absolute;
    top: 380px;
    margin: 0;
}

.title3_in_2{
    color: #ffffff;
    font-family: DINFont;
    font-weight: normal;
    font-size: 22px;
    line-height: 30px;
    max-width: 90%;
    transition: all 2 ease-in-out 0.3s;
    opacity: 0;
    /* margin-top: 40px; */
    position: absolute;
    top: 580px;
    margin: 0px;
}







.cent_3_ac {
    animation: cent_3_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.cent_3_ach {
    animation: cent_3_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes cent_3_ac {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@keyframes cent_3_ach {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

.title3_tit_ac {
    animation: title3_tit_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.title3_tit_ach {
    animation: title3_tit_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes title3_tit_ac {
    0% {
        opacity: 0;
        top: 180px;
    }

    100% {
        opacity: 1;
        top: 0px;
    }
}

@keyframes title3_tit_ach {
    0% {
        opacity: 1;
        top: 0px;
    }

    100% {
        opacity: 0;
        top: 180px;
    }
}
.title3_in_ac {
    animation: title3_in 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.title3_inh {
    animation: title3_inh 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes title3_in {
    0% {
        opacity: 0;
        top: 420px;
    }

    100% {
        opacity: 1;
        top: 100px;
    }
}

@keyframes title3_inh {
    0% {
        opacity: 1;
        top: 100px;
    }

    100% {
        opacity: 0;
        top: 420px;
    }
}


.title3_tit_2_ac {
    animation: title3_tit_2_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.title3_tit_2_ach {
    animation: title3_tit_2_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes title3_tit_2_ac {
    0% {
        opacity: 0;
        top: 380px;
    }

    100% {
        opacity: 1;
        top: 320px;
    }
}

@keyframes title3_tit_2_ach {
    0% {
        opacity: 1;
        top: 320px;
    }

    100% {
        opacity: 0;
        top: 380px;
    }
}
.title3_in_2_ac {
    animation: title3_in_2 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.title3_in_2_ach {
    animation: title3_in_2h 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes title3_in_2 {
    0% {
        opacity: 0;
        top: 420px;
    }

    100% {
        opacity: 1;
        top: 380px;
    }
}

@keyframes title3_in_2h {
    0% {
        opacity: 1;
        top: 380px;
    }

    100% {
        opacity: 0;
        top: 420px;
    }
}


/* back-3 */

/* back-4 */

.back3 {
   
    padding-left: 11%;
    padding-right: 11%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    /* opacity: 0; */
}

.title4 {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

 
.title4_tit{
    color: #ffffff;
    font-family: DINFont_BO;
    font-weight: bold;
    font-size: 36px;
    line-height: 34px;
    letter-spacing: 0px;
    text-align: center;
    position: absolute;
    opacity: 0;
    top: 120px;
    width: 100%;
}

.title4_in {
    color: #ffffff;
    font-family: DINFont;
    font-weight: normal;
    font-size: 24px;
    line-height: 30px;
    letter-spacing: 0px;
    text-align: center;
    opacity: 0;
    /* margin-top: 40px; */
    position: absolute;
    top: 220px;
    width: 90%;
}
.text_4_but {
    color: #ffffff;
    font-family: DINFont;
    font-weight: normal;
    font-size: 24px;
    line-height: 30px;
    letter-spacing: 0px;
    text-align: left;
    max-width: 95%;
    border: 1px solid #fff;
    border-radius: 12px;
    padding: 10px 16px;
    cursor: pointer;
    position: absolute;
    top: 286px;
    opacity: 0;
    z-index: 1000000;
}

.text_4_but:hover{
    border: 1px solid #fff;
    background-color: #fff;
    color: #000;
}

.cent_4 {
    position: relative;
    position: absolute;
    left: 20px;
    top: -120px;
    width: 50%;
    padding-bottom: 40px;
}


.video_interact_4{
    bottom: 16%;
    position: absolute;
    left: 50%;
    margin-left: -70px;
    margin-top: -60px;
    color: #fff;
    font-size: 16px;
    z-index: 99999;
    font-weight: 100;
    cursor: pointer;
    padding: 10px 18px;
    border: 1px solid #fff;
    
    transition: all 0.3s ease-in-out 0s;
    border-radius: 14px;
}

.video_interact_4:hover {
    border: 1px solid #fff;
    background-color: #fff;
    color: #000;
 }


.cent_4_ac {
    animation: cent_4_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.cent_4_ach {
    animation: cent_4_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes cent_4_ac {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@keyframes cent_4_ach {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

.title4_tit_ac {
    animation: title4_tit_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.title4_tit_ach {
    animation: title4_tit_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes title4_tit_ac {
    0% {
        opacity: 0;
        top: 120px;
    }

    100% {
        opacity: 1;
        top: -220px;
    }
}

@keyframes title4_tit_ach {
    0% {
        opacity: 1;
        top: -220px;
    }

    100% {
        opacity: 0;
        top: 120px;
    }
}
.title4_in_ac {
    animation: title4_in 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.title4_inh {
    animation: title4_inh 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes title4_in {
    0% {
        opacity: 0;
        top: 220px;
    }

    100% {
        opacity: 1;
        top: -100px;
    }
}

@keyframes title4_inh {
    0% {
        opacity: 1;
        top: -100px;
    }

    100% {
        opacity: 0;
        top: 220px;
    }
}
.text_4_but_ac {
    animation: text_4_but 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.text_4_but_ach {
    animation: text_4_but_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes text_4_but {
    0% {
        opacity: 0;
        top: 220px;
    }

    100% {
        opacity: 1;
        top: 46px;
    }
}

@keyframes text_4_but_ach {
    0% {
        opacity: 1;
        top: 46px;
    }

    100% {
        opacity: 0;
        top: 220px;
    }
}





/* back-4 */

.video_l1 {
    position: absolute;
    top: 10px;
    left: 0px;
    width: 45%;
    height: 100%;
    /* border: 1px solid rgb(0, 255, 89); */
    z-index: 999999999;
    cursor: pointer;
}

.video_r1 {
    position: absolute;
    top: 10px;
    right: 0px;
    width: 45%;
    height: 100%;
    /* border: 1px solid #29a2b8; */
    z-index: 99999999;
    cursor: pointer;
}

.cent5 {
    position: relative;
    position: absolute;
    right: 500px;
    top: 40px;
    width: 33%;
}

.cent5_video {
    position: absolute;
    top: -130px;
}

.cent6_video {
    position: absolute;
    top: -130px;
}

.cent7_video {
    position: absolute;
    top: -260px;
}

.y-ain1 {
    color: #ffffff;
    font-family: DINFont_BO;
    font-weight: bold;
    font-size: 36px;
    line-height: normal;
    letter-spacing: 0px;
    text-align: left;
}

.text1 {
    color: #ffffff;
    font-family: DINFont;
    font-weight: normal;
    font-size: 24px;
    line-height: normal;
    letter-spacing: 0px;
    text-align: left;
}

.bottom1 {
    position: fixed;
    bottom: 3px;
    left: 50%;
    width: 260px;
    margin-left: -102px;
    z-index: 999;
}
.bottom1_top{
    display: flex;
    align-items: center;
    justify-content: center;
}

.bottom1 img {
    width: 33px;
    margin-right: 28px;
}

.img_mouse {
    width: 100%;
    margin: 20px auto 10px;

    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.img_keyboard {
    margin-top: 2px;
    animation: img_keyboard_move 1.3s cubic-bezier(0, 0.41, 0.67, 1.08) 0.2s infinite both;
}

@keyframes img_keyboard_move {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

.cen_back {
    /* width: 100%;
    height: 140px;
    z-index: 9; */
    position: fixed;
    /* bottom: 0; */
}

/* text in right */


.video_cen2 {
    /* position: absolute; */
    top: -120px;
}
.video_cen4 {
    /* position: absolute; */
    top: 60px;
    left: -20px;
}




.back3_show {
    animation: move_b3 0.1s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.back3_hide {
    animation: move_b3no 0.1s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes move_b3 {
    0% {
        opacity: 0;
        /* display: none; */
    }

    100% {
        opacity: 1;
        /* display: none; */
    }
}

@keyframes move_b3no {
    0% {
        opacity: 1;
        /* display: none; */
    }

    100% {
        opacity: 0;
        /* display: none; */
    }
}





.back4 {
    position: relative;
}

.back1 .img1 {
    display: block;
    position: absolute;
    top: 0;
    animation: move 30s linear infinite;
}

.back1 .img2 {
    display: block;
    position: absolute;
    top: 120px;
    animation: move 40s linear infinite;
}

@keyframes move {
    0% {
        left: 1000px;
    }

    100% {
        left: -1000px;
    }
}

@keyframes move1 {
    0% {
        top: 100px;
    }

    100% {
        top: 90px;
    }
}

@keyframes move2 {
    0% {
        left: 300px;
    }

    100% {
        left: 330px;
    }
}

@keyframes move22 {
    0% {
        left: 330px;
    }

    100% {
        left: 300px;
    }
}

@keyframes move3 {
    0% {
        margin-top: 50px;
        opacity: 1;
    }

    100% {
        margin-top: 45px;
        opacity: 0.7;
    }
}

.back2 .img10 {
    display: block;
    position: absolute;
    top: 120px;
    right: 130px;
    opacity: 0;
}

.active2 {
    opacity: 0;
    display: block;
    position: absolute;
    top: 120px;
    right: 130px;
    animation: move4 0.4s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.active22 {
    animation: move44 0.4s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes move4 {
    0% {
        right: 130px;
        opacity: 0;
    }

    100% {
        right: 200px;
        opacity: 1;
    }
}

@keyframes move44 {
    0% {
        right: 200px;
        opacity: 1;
    }

    100% {
        right: 130px;
        opacity: 0;
    }
}

.title {
    position: absolute;
    left: 130px;
    top: 220px;
    font-family: "Microsoft Yahei";
    color: #fff;
    width: 500px;
    margin-left: 86px;
    opacity: 0;
}

.active_r {
    animation: move_r 0.4s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.active_r1 {
    animation: move_r1 0.4s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes move_r {
    0% {
        right: 10px;
        opacity: 0;
    }

    100% {
        right: 100px;
        opacity: 1;
    }
}

@keyframes move_r1 {
    0% {
        right: 100px;
        opacity: 1;
    }

    100% {
        right: 10px;
        opacity: 0;
    }
}

.active4 {
    animation: move6 0.4s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.active44 {
    animation: move66 0.4s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes move6 {
    0% {
        left: 130px;
        opacity: 0;
    }

    100% {
        left: 200px;
        opacity: 1;
    }
}

@keyframes move66 {
    0% {
        left: 200px;
        opacity: 1;
    }

    100% {
        left: 130px;
        opacity: 0;
    }
}

.text_p {
    transition-delay: 2.5s;
    max-width: 65%;
}

.title h3 {
    width: 66px;
    height: 126px;
    text-indent: -9999em;
    float: left;
}

.title .text {
    /* margin-left: 86px; */
    margin-top: 8px;
}

.title .text h4 {
    font-size: 34px;
    font-weight: 400;
    letter-spacing: 2px;
    line-height: 48px;
    margin-bottom: 6px;
}

.title .text p {
    line-height: 32px;
    font-size: 19px;
    letter-spacing: 1px;
    opacity: 0.8;
}

.title h3 {
    background: url(../images/instagram.png) no-repeat;
}

.y-ain {
    display: block;
    transition: all 5s;
}

.active3 {
    animation: move5 1.5s linear 1s infinite alternate;
}

@keyframes move5 {
    0% {
        transform: rotateZ(0);
    }

    100% {
        transform: rotateZ(360deg);
    }
}

.back3 .img11 {
    display: block;
    position: absolute;
    bottom: 0;
}

.back3 .img12 {
    display: block;
    position: absolute;
    bottom: 0;
    top: 120px;
    right: 130px;
    opacity: 0;
}

.square-1 {
    position: absolute;
    width: 88px;
    height: 88px;
    background: #33bb9a;
    left: 252px;
    top: 60px;
}

.square-2 {
    position: absolute;
    width: 88px;
    height: 88px;
    background: #29a2b8;
    left: 164px;
    top: 148px;
}

.square-3 {
    position: absolute;
    width: 88px;
    height: 88px;
    background: #60cf6e;
    left: 340px;
    top: 148px;
}

.square-4 {
    position: absolute;
    background: #8ae75a;
    left: 252px;
    top: 236px;
    width: 176px;
    height: 176px;
    background-image: url(../images/17.jpg);
}

.square-5 {
    position: absolute;
    width: 88px;
    height: 88px;
    background: #33bb9a;
    left: 428px;
    top: 324px;
}
 

.back4 .img14 {
    display: block;
    position: absolute;
    top: 120px;
    right: 130px;
    opacity: 0;
}

.back4 .img13 {
    position: absolute;
    left: 200px;
    top: 130px;
    display: block;
}

.y-ain2 {
    display: block;
    transition: all 5s;
}

/*内容结束*/